Stabilizing spring



A ril 3, 1928. v 1,664,618

J. w. FRY

STABILIZING SPRING Filed March 28. 1927 fm'i I I 'MZz R.

8 P9 /5% I ?ATTORNEY.

Patented Apr. 3, 1928.

JOHN W. 'ERY, -.OF SIRUEHERS, OHIO.

' s'rammzmc SPRING.

Application ,filed March 28, 1927. Serial K0. 179,157.

This invention relates to vehicle springs and-moreparticularly tosprings for automobiles.

'The principal object of .this invention is to provide a spring soconstructed that the weight orbody carried by this spring will tend-tobecarried under momentum without subjecting the body or weight to anysudden, upward, downward or tilting motion. a

A further object of this invention is to provide an upper and lowerspring member, so arranged that the lower spring member constantly actsas a check against undesired movement of the body ,of'the vehicle suchas upward or swaying movements which are common to vehicle bodies whensuspended by springs of ordinary use whenthe vehicle is'traveling overuneven road surfaces.

Another object of the invention to'provide upturned ends of a springwhich are drawn down and caused to be .at constant tension over an--arc-shaped surface of two lever members functioning with. an upperand lower spring and atsuspension 'points from'the vehicle. 7

A still further object is to provide a spring device so constructed thatthe weight or body carried by said springs tends to becarried forward ina desired even way and not materially affected by alight or heavy load.lVi-th the foregoing and other objects in View which will appear as the"description proceeds, the invention resides in :the combina'tion andarrangement of parts and in the details of construction hereinafter de"scribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed, can be made within thescope of what is claimed, without departing from the spirit of theinvention.

The invention is illustrated in the accompanying drawing wherein Figure1 is a side elevation of the device.

Figure 2 is a sectional view taken on line Q2 of Figure 1. v

Figure 3 is a detail view showing a member of Figure 1.

Figure is a detail view of Figure 1, showing an end of a spring with anupturned end not under tension.

By referring to Fig. 1 it will be seen that I have-provided an ordinaryvehicle axle 1 supported by wheels 2. The axle 1 is pro vided withsupport members 3 located near the outer end of said axle.

' As the description of *thisdevice; roceeds,

'tobe carried rests upon any ordinary-frame member 4. Rigidlyattac-hedto this frame member 4 at a central point 5 by meansof clamps=6is an upper spring .7 comprised o'f a'plurality of leaves.

' "By referring to Fig. 4; it will be seen that the outer ends 8 of theupper spring 7 is provided with an upper curve when .not under tension.The outer ends8 .as shown in Fig. 1 are under tension and securelyclamped to levers'9 by means of clamps 10.

The outer ends 11 of'the levers'9 'arelsecured to the support members '3"by means of shackles 12. The upper or inner ends 18 of the levers 9 aresecured to a .pair of shackles .14. This pair of shackles 11 1 havetheir ends secured to a common pivot 15. This pivot lain-turn is securedto a lower spring 16 by means of a clamp 17 which holds the common pivot15 at a central point on the lower spring '16, which isilocated directly underneath the, upper spring ,7. The outer ends 18 of the lowerspring16 aresecured to shackles 19. .The upper ends 20 of-the shackles-l9rare securedito yoke shaped membersQl'in such amanneras to allow forthe clearness of the levers-9 at points 22 so that levers f9 may beallowed a desirable range of movementwwhen the vehicle wheels 2 aresubjected to uneven surfacesiofa -road-' way. The upper ends 23 of theyoke shaped members 21 are rigidly secured at the outer ends of theframe member 4 by any desirable means.

By referring to Fig. 8 it will be seen that 9 automatically shorteningor lengthening the range of the spring 7 and to utilize the upturnedends 8 of the spring 7 when under tension, as the wheels 2 of thevehicle or the weight carried upon the frame member 4 are subjected tosuch movements as to cause an upward or downward movement of the innerends 13 ofthe levers 9.

It is obvious that the upper spring 7 may be made of any desiredstrength and length in order that the same may function within a rangelimited within its suspension. It is also obvious that the lower spring16 may be made in varying lengths and strength in order to meet varyingconditions which it is desirable to meet in constructing a spring devicefor varying roads and various constructions of vehicles. It is believedthat under ordinary conditions the lower spring '16 should be built soas to be more flexible than the upper spring 7 in order to allow for alonger range ofupward and downward. movement of the wheels 2, withoutsubject ing the load resting upon the frame member 4 to upward thrustsand rebounds or swaying or tilting movements. One of the commonobjections to springs utilized for the purpose of carrying loads is thatvery little consideration has been given to the undesirable action ofsprings which are set in motion when a vehicle travels over unevensurfaces. These undersirable actions of springs cause rebounds of theload carried and subject the wheels to undesirable downward thrusts intodepressions'in a roadway.

In this invention these undesirable actimis of springs have beenconsidered with a view of reducing these objectionable features to theminimum. In the construction shown and described it is obvious that thelower spring 16 when placed in proper assembly in connection with theother elements of the device should be under constant tension in orderthat the up turned ends 8 of the upper spring 7 are drawn down and alsounder constant tension, thereby producing reserve energy in the outerends 8 of the spring 7 to be used to minimize the tendency of the wheelsto be dropped violently into depressions of the roadway. In regard tothe lower spring 16,

it is obvious that when this spring has been assembled, as abovedescribed, there is a constant downward pull at each outer edge of theframe member 4:, thereby acting asa snubber for checking rebounds thatwould otherwise result when a vehicle is traveling over uneven roads.

What I claim is:

combination with an axle and support members attached thereto, twolevers inserted between two springs, the outer ends of said leverspivotally connected to the supports attached to the axle, the upperspring rigidly secured at a central point to a frame member to which isattached a body, a lower spring and means for securing outer ends ofsaid lower spring to outer ends of the frame member above mentioned,inner ends of said levers pivotly attached to said lower spring, acurved upper surface on each of said levers, upturned ends of said upperspring, means for keeping said outer "ends of upper spring underconstant tension, substantially as described for the purpose set forth.

2. In a device'of the class described, an axle and support membersattached thereto, two levers inserted between two springs,the outer endsof said levers pivotly connected to the supports attached to the axle,the upper spring rigidly secured at a' central point to a frame memberto which is attached a body load, a lower spring and means for securingouter ends of said lower spring to outer ends of the frame member abovementionethinner ends of said levers pivotly attached to said lowerspring, a curved upper surface on each of said levers, upturned ends ofsaid upper spring, means for keeping upper and lower springs underconstant tension, means for keeping outer ends ofupper spring pulleddown against curved upper surface of each of said levers and undertension.

In testimony whereof I afiix my signature.

JOHN w. FRY.

1. In a device'of theclass described, in,

